Update docker-publish.yml

.github/workflows/docker-publish.yml

@@ -42,10 +42,17 @@ jobs:
         uses: sigstore/cosign-installer@f3c664df7af409cb4873aa5068053ba9d61a57b6 #v2.6.0
         with:
           cosign-release: "v1.13.1"
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v2
+        with:
+          platforms: arm64
 
       # Workaround: https://github.com/docker/build-push-action/issues/461
       - name: Setup Docker buildx
         uses: docker/setup-buildx-action@79abd3f86f79a9d68a23c75a09a9a85889262adf
+        with:
+          platforms: linux/amd64,linux/arm64
 
       # Login against a Docker registry except on PR
       # https://github.com/docker/login-action
@@ -78,6 +85,7 @@ jobs:
           labels: ${{ steps.meta.outputs.labels }}
           cache-from: type=gha
           cache-to: type=gha,mode=max
+          platforms: linux/amd64,linux/arm64
 
       # Sign the resulting Docker image digest except on PRs.
       # This will only write to the public Rekor transparency log when the Docker